Machine for printing envelops.



W0. fifi8fl35. Patented Fab. l2, I90l. W. M. BLVMER 8:. S. L. WIEGAND.

MACHINE FOR PRINTING ENVELUPS.

(Application filed July 18, 1900.)

(Win Model.)

. WITNESSES: Z W yENTORS, fl/wwzz m: mums PEYERs ca, mmuumo" WASHINGTON n c.

W ELLVVOOD M.

CLYMER AND S. LLOYD \VIEGAND, OF PHILADELPHIA,

PENNSYLVANIA, ASSIGNORS TO ROBERT S. CLYMER, OF \VOODBURY,

J ltlttllili.

l i ll lGl-llNE FOR PRlNTlNG ENVELOPS.

"FIOJMEIWN forming of Letters Patent No. 668,035, dated February 12, 1 901.

To all 1117107221 it may concern.-

Be it known that we, WELLWoon M. OLY- HER and S. LLOYD WIEGAND, citizens of the United States, and residents of the city and count} of Philadelphia, in the State of Pennsylvania, have invented certain new and useful improvements in Machines for Printing Envelops, of which the following is a specifi' cation.

The objects of this invention are to print envelope with greater celeriiy and exact register and to deliver them in convenient position for packing as they pass from the ma chine; and to this end this invention consists in an improvement in feeding mechanism and in the mechanism for discharging them from the machine and in an improved construction of inking devices, as hereinafter described, and shown in the accompanying drawings,

Referring to the drawings, Figure 1 shows a partly-sectional side elevation of a machine embodying this invention with one side frame removed to show the working parts. Fig. 2 shows a plan thereof.

7 (t represents the frame of the machine, and 1') a shaft turning in hearings in the frame a and carrying an impression-cylinder 0.

(Z is a printing-form cylinder turning with an arbor e in hearings in the frame CL and pressing'toward the cylinder 0.

ffare inking-rollers havingjournals g, resting in bearings it h in the frame a. i

L is an inking-cylinder having journals j, held in slots 7c in the frame a and bearing upon the rollers ff, forcing them into con tact with the printing-form on the cylinder (Z. A roller 19, having journals 12 supported in bearings 13 in the slots 7c, vibrates lengthwise and also rolls upon the cylinder Z to distribute the int: evenly thereon. The vibratory motion is produced by a right and left helically threaded or grooved cam 1+l and a vibratory crescent-shaped feather 15 in the usual manner.

Z is an inh'distrilmting cylinder turning in bearings in a frame m, vibrating upon the arher a of a roller 0. The frame in is vibrated by a link g, connecting it with a lever 2, hereinafter described. The cylinder Z in vibrating alternately contacts with the roller 1) of an ink-fountain q and with the inkingslots u in the bottom of the box t, through which reciprocating blades o pass and engage the lapel of the lowest envelop and pass it through a slot 20 in the side of the box 25, close to the bottom, and force it under a roller a3, pressing against the cylinder 0. The blades o are attached to a lever y, which is reciprocated by a earn ,6 on the shaft 1). The motion of the blades '0, as well as their form, is that of circular arcs. As they enter the box If the ends of the blades c pass between the lapel and the body of the lowest envelop and as they move toward the slot to they raise the envelop and then lower the edge of it, so as to pass out of the slot 10. At the same time the envelops above are lifted sufficiently to prevent them entering the slot 11;. Upon the blades "0 being retracted the envelops remaining in the box if descend and the operation is repeated.

In order to prevent the centrifugal force straightening the blades 1;, they should be made stiff, or else they will fail to enter the slot to, or else guides extending laterally beyond the sides of the box t should be used to restrain the blades from springing upward.

As soon as the edge of the envelop passes under the roller 00 it acquires the motion and velocity of the cylinder 0 and is clamped to the cylinder 0 by nippers 1 on an arbor 2, controlled and operated by a stationary cam 3. The envelop passes with the cylinder 0 under the cylinder d and is thereby printed, and, moving farther, the nippers release it, and it after such release passes under a roller 4, which does not contact with the cylinder 0, but directs the envelop downwardly in front of a flier 5, vibrated by a lever 6 and rod 7 and cam 8 on the shaft 1). The flier 5 carries the envelop into a trough 10, in which it is held from returning by hooked springs 11, secured to the trough 10, which have diverging ends and spring open as the envelop enters and, closing retain it in the trough 10, in which it is pushed forward by other en velops following it in like manner.

Having described our invention and the operation thereof, What we claim is- 1. In a machine for printing envelops a skeleton feeding-box, in combination with curved reciprocating blades, a lever actuating the blades, an impression-cylinder provided with nippers, and a roller arranged to press the envelop against the impression-cyl- 

